• C#中的BackgroundWorker控件+Delegate.Invoke (委托同步调用)


    C#中的BackgroundWorker控件+Delegate.Invoke (委托同步调用)

    简单代码,记录一下。一个BackgroundWorker控件  backgroundWorkerRefresh +listview控件

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Text;
    using System.Windows.Forms;
    using System.Threading;
    
    namespace CallCenter
    {
        public partial class MainFrm : Form
        {
            public bool isStart = false;
            public MainFrm()
            {
                InitializeComponent();
                RefreshDisp();
            }
            private void RefreshDisp()
            {
                lv.Items.Clear();
    
                for (int i = 0; i < 8; i++)
                {
                    ListViewItem lvitem = new ListViewItem();
                    lvitem.SubItems[0].Text = i.ToString();
                    lvitem.SubItems.Add("项目编号" + i.ToString());
                    lvitem.SubItems.Add("项目名称" + i.ToString());
                    lvitem.SubItems.Add("项目负责人" + i.ToString());
                    lvitem.SubItems.Add("项目年度-" + i.ToString());
                    lvitem.SubItems.Add(DateTime.Now.ToString() + " -" + i.ToString());
                    lvitem.SubItems.Add(" #" + i.ToString());
                    lv.Items.Add(lvitem);
                }
               
            }
            private void RefreshDispCH(int ch)
            {
                        
                
                    L_Status.Text = lv.Items[ch].SubItems[6].Text;
                    lv.Items[ch].SubItems[6].Text = "test";
                    for (int i = 0; i < 7; i++)
                    {
                        lv.Items[ch].SubItems[i].Text = DateTime.Now.ToString() + " -" + i.ToString();   
                    }
               
            }
    
            public delegate void D_RefreshDisp();
            public delegate void D_RefreshDispCH(int ch);
    
            private void backgroundWorkerRefresh_DoWork(object sender, DoWorkEventArgs e)
            {
                do
                {
                   // this.Invoke(new D_RefreshDisp(RefreshDisp));    
                      
                    Thread.Sleep(1000);
                    this.Invoke(new D_RefreshDispCH(RefreshDispCH), 3); 
                } while (isStart);
               
               
            }
    
            private void backgroundWorkerRefresh_ProgressChanged(object sender, ProgressChangedEventArgs e)
            {
                
            }
    
            private void Startbutton_Click(object sender, EventArgs e)
            {
                Startbutton.Enabled = false;
                isStart = true;
                backgroundWorkerRefresh.RunWorkerAsync();
                
            }
        }
    }
    View Code
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  • 原文地址:https://www.cnblogs.com/panjinzhao/p/4791894.html
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